TDA1308AT/N2,112

Overview

The TDA1308AT/N2,112 is a Class-AB stereo headphone driver manufactured by NXP USA Inc. It utilizes a 1μm CMOS process and features MOS output structures designed for portable digital audio applications. The device supports single supply voltages from 2.4 V to 7.0 V or dual supplies of ±1.2 V to ±3.5 V. It delivers a maximum output power of 80 mW per channel into a 32 Ω load with total harmonic distortion plus noise below 0.1%. Key electrical parameters include a typical signal-to-noise ratio of 110 dB, a slew rate of 5 V/μs, and an operating temperature range of -40°C to +85°C.

Feature Summary

• Eliminates audible switching clicks during power-on and power-off cycles
• Provides excellent power supply ripple rejection capabilities
• Features short-circuit resistant output stages
• Delivers high performance characterized by low distortion and high slew rate

Applications

• Portable digital audio equipment
• Discman devices
• Optical drive headphone amplifier circuits

Procurement Notes

Verify the specific ordering suffix against current manufacturer databases as product status may have changed. Confirm package type matches design requirements, as this part number corresponds to the SO8 plastic small outline package. Check for RoHS compliance documentation if required for specific manufacturing standards. Ensure availability aligns with project timelines due to potential lifecycle changes.

Selection Notes

Select this component when designing low-voltage portable audio systems requiring integrated stereo amplification. The TDA1308A variant specifically enables operation at lower supply voltages compared to the standard TDA1308. Consider the SO8 package dimensions for PCB layout constraints. Verify that the 32 Ω load impedance matches target headphone specifications to achieve optimal power delivery and distortion levels.

Part Context

This device belongs to the TDA1308 family of Class-AB stereo headphone drivers developed primarily for portable digital audio markets. The 'A' designation indicates support for lower supply voltage operation. The N2,112 suffix denotes the specific tape and reel packaging configuration for surface mount assembly. This series represents a specialized solution for driving low-impedance headphones in compact consumer electronics.

Replacement Considerations

TDA1308AT/N2,115 is listed as an alternative ordering option within the same product family.